brown



March 22 1927.

J. W. BROWN DERRICK 0R TOWER 1 2 4 Sheets-Sheet l jg. Z

DERRICK 6R TOWER May 5, 1925 Filed March 22 ,19272,

J. W. BROWN DERRICK OR TOWER Filed May 5, 1925 4 Sheets-Sheet 5 March 22 1927..

J. w. BROWN DERRICK OR TOWER Filed May 5 M 4 Sheets-Sheet 4 inventor v Patented Mar. 22, 1927.

JAMES W. BROWN, OF TULSA, OKLAHOMA.

DERRICK R TOWER.

Application filed May 5, 1925. Serial No. 28,165.

struotion incorporating a ladder therein one use of which is to aid workmen in attachin and detaching the parts.

Addltional objects and advantages will 20 become apparent from a'consideration of the description following taken in connection with accompanying drawings illustrating an operative embodiment. In said drawings Figure 1 is a view of the derrick or tower in side elevation;

Figures2 and 3 are reverse perspective views'illustrating one of the base joints;

- Figure 4 is a cross sectional view taken on the line 4-4 of Figure 3;

Figures 5 and 6 are reverse perspective views of one of the topjoints;

' Figures 7 and 8 are reverseperspective views of one of the intermediate joints;

Figures 9, 10 and 11, respectively, are perspective views illustrating in spaced relation, theplates forming the base joints, the top joints and the intermediate joints, said plates of the top joints being'shown reversed to each other;

Figure 12 is a'detail view in side elevation illustrating the supporting means for one of/ the ladder stiles, and

Figure 13 is a view in plan of the parts of Figure 12.

The derrick or tower may be supported on a suitable foundation, base or bases, and for instance the corner blocks '10, of concrete or other appropriate material. The legs of the derrick are in one piece or made upof a number of angle beams 12 in line with said base blocks 10. The beams 12 are connected on all four sides of the derrick by lateral angle beams 13, and the beams 12 are connected to the lowermostbeams 13 by base joints as at A, to the uppermost beams Still another object is to provide a con 13 by top joints as at B, and to all of the other beams .13 by intermediate joints as at C,the beams 12, thus being of a length substantially the same as the distance between beams 13 between which they are interposed.

Referring now to the base joints A as specifically shown in Figures 2 to 4, an outer clamp plate of angle formation is provided as at 14 in association with an inner angular clamp plate 15. Integral with the plate 14 is an attaching flange or base 16 secured to the corner block or foundation 10 as by means of bolts 17 anchored in the latter and passing through suitable openings in the flange 16 and above the same receiving clamping nuts 18. The plate 14 is thus removably secured to the foundation or block 10 and if desired, the latter may be of a construction to permit removal or portability.

Integral with the plate 14 and extending inwardly from the angle thereof is a tenon or tongue 19. This element 19 passes through an opening 19 in the adjacent beam 12 and an opening 20 in the plate 15 and inwardly of the same has a wedge key 21 removably passed through an opening 22 extending longitudinally thereof. The main portion of the inner plate 15 is of less width than the outer plate 14 and intermediate its ends, said inner plate has lugs 23 extending laterally therefrom. The vertical flanges of the lowermost beams 13 are received intermediate the lugs 23 and outer plate 14 and the horizontal or top flanges of said beams 13 rest on the lugs. Said lowermost beams therefore are supported against downward displacement. The lowermost beams 12 as well as the lowermost beams 13 are clamped rigidly together since they have parts located intermediate the plates 14 and 15 and are-subject to the action of the wedge keys 21. Such partsmay also be readily disassembled following removal of the wedge key as is obvious.

The intermediate joints as at C are very similar to the joints at A, the differences being that the outer plate here designated 24 lacks the base 16 and adjacent beams 12 overlap each other and have registering openings 25 therethrough through which the tenon 19 passes. Otherwise the joints A and B are similar.

l/Vith reference to the top joint at B, its parts are substantially identical with those of the base joints A, the outer plates 14 are, however, inverted with respect to the position of plates 14 at the joints A, so as to support beams or the like D forming part of a sup orting structure for hoisting or other nice anism with which the derrick is associated. The beams D are secured to the associated flanges or plates 16 as by bolts 26 passing therethrough and through the corresponding openings ot'wt-hc flanges 16 as occupied by the bolts 17 of the base joints.

The structure is suitably reentoroed by angularly disposed braces or strut rods as at 27, removably passing through outwardly extending lugs 28 integral with the outer .plartes 14 and 24, and secured in place by nuts 29 threaded on such brace rods.

A ladder particularly for use for workmen innssemblring and disassembling the derrick is shown at E and may be made up iot' any suitable number of sections, each section consisting of stiles 30 joined by rungs 31. Brigidily connected by rivets 32 to the stiles 30 are attaching hooks 33 of any desired number. These hooks have their bills as at 34 shaped so as to engage over the upper 'fiangeof the adjacent beams 13, as particularl shown: in Figures 12 and 13.

. e various parts of the tower or derrick are usually made of metal, for instance cast iron, cast steel or pressed steel.

As .a result of the invention, the various paints ma :he readily knocked down or disassemble upon removing the :nuts 29 and braces, the wedges 21 and the nuts 18 and bolts 26. vA particular advantage resides in the fact that incidental to disassembling or reassembling, no machine work or blacksmithing is necessary .in connection with the pants :forming the joints, and moreover, the g oints provided by this invention are superior-in strength to those of the usual joint consisting of platessupplied at the junction of two beams and riveted in place.

Various changes may be resorted to provideid they fall within the spirit and scope ,of the invention.

curing the legs and cross beams together comprising inner and-outer clamp parts in one piece and V-shaped, one of said parts having fastening means extending therefrom through the angle of the other part.

8. .A derrick composed of legs and :beams bridging them, clamping plates securing the 1 legs and beams together, said ites being separable firmneach other by re ative latera movement, one of said plates having lug means thereon in a main plane outwardly of the zone of engagement of the platcswith the legs on which said beams rest.

4. A joint for the purpose specified comprising plates of V-shape adapted to clamp parts therebetween, fastening means to connect the plates at their angles for application and removal andto provide clamping spaces on opposite sides of said angles.

5. A joint of the class described comprising V-shaped plates, means'at the angles of said plates to secure said plates in clamping relation for application and separation through relative lateral movement, and means on one of the plates in a anain ane thereof and outwardly of the first mentioned means to support material clamped between them. I

6. A joint of the class described comprising V-shaped plates, means :at the angles 'otsaid plates to-secure said :platos in iclamping relation for application and separation through relative lateral movement, 1;. :lug on one of the-plates in a main plume thereof and outwardly oat the first mentioned'means t0 support material clamped between them.

7. A jont of the class described comprising a =V-shaped clamping plate, :a second V-shaped clamping plate, :means at the angles of said plates securing'said iclamping plates in clamped relation for application and separation through relative lateral movement, oneiof said plates having=an edge portion spaced lfirom the adjacent edge por-- tion of the other pate, and a Zbeam-supporting lug extending rfrom the last mentioned plate in a :main plane thereof and overlap ping the first mentioned plate.

8. A jointwof the class described oompris ing a clamping plate applicable and separablethrough relative lateral movement, a beam-supporting lug extending from one of said plates in a main 'plane thereof inoverlapping relation to the other plate, and

clamping means extending from one of :the

plates through the other plate.

.9. A joint of the class described compris =i-ng a iclamping plate, :a second clamping plate, means securing .said clamping plates in clamped relation for up lication and separation through relative ;ateral movement, rone of said plates having an edge portion spaced from :the adjacent edge portion of the other plate, a beam-supporting lug extending lirom the last mentionedpla-te in a main plane thereorf and overlapping the first mentioned :plate, a .tenon extending ifrom one otssaid plat-es, itheotherplate having an opening penetrated by said tenon, and .a :fastening means :forsaid, tenon.

10. A joint of theelas's described-compris inga clamping plate, a second clamping plate, means securing said clamping plates in clamped relation for application and separation through relative lateral movement, one of said plates having an edge portion spaced from the adjacent edge portion of the other plate, a beam-supporting lug extending from the last mentioned plate in a main plane thereof and overlapping the first mentioned plate, a tenon extending from one of said plates, the other plate hav ing an opening penetrated by said tenon, fastening means for said tenon, and an attaching plate integral with one of the first mentioned plates.

11. A joint of the class described comprising a clamping plate, a second clamping plate, said clamping plates being of V-shape, means securing said clamping plates in clamped relation for application and separation through relative lateral movement, one of said plates having an edge portion spaced from the adj aeent edge portion 01" the other plate, a beam supporting lug extending from the last mentioned plate in the plane of one of the flanges thereof and overlapping the first mentioned plate, a tenon extending from the angle of one of said plates, the other plate having an opening at its angle penetrated by said tenon, and fastening means for said tenon.

In testimony whereof I affix my signature.

JAMES XV. BROWN. 

